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Reactively compatibilized butyl rubber/polyamide TPV (thermoplastic vulcanzate) and preparation method thereof

A thermoplastic vulcanizate, reactive compatibilization technology, applied in the field of polymer materials, can solve the problems of high requirements of industrial production and the inability to achieve compatibilization effect.

Active Publication Date: 2016-01-20
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above invention patents all improve the performance of TPV by adding a compatibilizer, but the compatibilizing effect cannot meet the high requirements of industrial production.

Method used

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  • Reactively compatibilized butyl rubber/polyamide TPV (thermoplastic vulcanzate) and preparation method thereof
  • Reactively compatibilized butyl rubber/polyamide TPV (thermoplastic vulcanzate) and preparation method thereof
  • Reactively compatibilized butyl rubber/polyamide TPV (thermoplastic vulcanzate) and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The basic composition and mass parts of the selected raw materials are as follows:

[0025]

[0026]

[0027] Wherein the basic composition and mass ratio of self-made compatibilizer are:

[0028] Halogen-free butyl rubber 100;

[0029] Glycidyl methacrylate 0.01;

[0030] Dicumyl peroxide 1

[0031] According to the above formula, first melt and mix halogen-free butyl rubber, glycidyl methacrylate, and dicumyl peroxide in a Haake internal mixer at 150°C for 5 minutes to obtain graft-modified halogen-free butyl rubber; then mix the dried polyamide 1010 with halogen-free butyl rubber at 190°C, add graft-modified halogen-free butyl rubber and antioxidants in proportion, wait until the mixture is uniform, and then discharge and cool to room temperature ; then mix with anti-aging agent, plasticizer, vulcanizing agent and vulcanization aid at room temperature to obtain a rubber-plastic premix; place the rubber-plastic premix in a screw extruder, set the vulcanizatio...

Embodiment 2

[0035] The basic composition and mass parts of the selected raw materials are as follows:

[0036]

[0037]

[0038] Wherein the basic composition and mass ratio of self-made compatibilizer are:

[0039] Chlorobutyl Rubber 100

[0040] 1,2-epoxybutene 0.5

[0041] Dicumyl peroxide 0.1

[0042] According to the above formula, chlorinated butyl rubber, 1,2-epoxybutene, and dicumyl peroxide were melted and mixed in a Haake internal mixer at 170°C for 8 minutes to obtain graft-modified butyl chloride. base rubber; then mix the dried polyamide 1212 and chlorinated butyl rubber at 200°C, add graft-modified chlorinated butyl rubber and antioxidants in proportion, wait until the mixture is uniform, and then discharge and cool to room temperature; then mix it with anti-aging agent, plasticizer, vulcanizing agent and vulcanization aid at room temperature to obtain a rubber-plastic premix; put the rubber-plastic premix in a screw extruder, set the vulcanization temperature to 20...

Embodiment 3

[0046] The basic composition and mass parts of the selected raw materials are as follows:

[0047]

[0048]

[0049] Wherein the basic composition and mass ratio of self-made compatibilizer are:

[0050] Bromobutyl Rubber 100

[0051] Acrylic anhydride 5

[0052] Dicumyl peroxide 3

[0053] According to the above formula, first melt and mix bromobutyl rubber, acrylic anhydride, and dicumyl peroxide in a Haake internal mixer at 190°C for 10 minutes to obtain graft-modified bromobutyl rubber; then bake Mix dry polyamide 12 and bromobutyl rubber at 210°C, add graft-modified bromobutyl rubber and antioxidants in proportion, wait for the mixture to be uniform, and then discharge and cool to room temperature; Mix with anti-aging agent, plasticizer, vulcanizing agent and vulcanization auxiliary agent to obtain rubber and plastic premix; put the rubber and plastic premix in the screw extruder, set the vulcanization temperature to 190°C, and the speed to 700rpm, and dynamicall...

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Abstract

The invention relates to reactively compatibilized butyl rubber / polyamide TPV (thermoplastic vulcanzate) and a preparation method thereof. The butyl rubber, a bifunctional compound and a radical initiator are mixed at a high temperature, bifunctional compound graft-modified butyl rubber is prepared and taken as a compatibilizer, and the butyl rubber / polyamide TPV with excellent physical and mechanical properties, air tightness, hardness and the like is prepared with rubber and plastic premixing and dynamic vulcanization technologies.

Description

Technical field: [0001] The invention relates to a reactive compatibilization butyl rubber / polyamide thermoplastic vulcanizate and a preparation method thereof. It belongs to the field of polymer materials. Background technique: [0002] Thermoplastic vulcanizate is a special thermoplastic elastomer obtained by dynamic vulcanization reaction processing technology. When a small amount of plastic phase is melt-blended with a large amount of rubber, the rubber is chemically cross-linked under the action of the cross-linking agent, and the viscosity increases, so it is broken into micron-sized rubber particles under the action of strong mechanical shear, and finally forms the following Rubber is the dispersed phase and plastic is the special phase structure of the continuous phase. This special structure makes thermoplastic vulcanizate not only have the high elasticity and softness of traditional rubber, but also have the properties of thermoplastic processing and recyclabilit...

Claims

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Application Information

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IPC IPC(8): C08L23/22C08L23/28C08L77/06C08L77/02C08L51/04C08L91/06C08K5/134C08K3/22C08K5/3415B29C47/92B29C48/92
CPCB29C48/92B29C2948/9258B29C2948/92704C08L23/22C08L23/283C08L2205/02C08L2205/025C08L2205/03C08L2205/08C08L77/06C08L51/04C08L91/06C08K5/1345C08K5/3415C08K2003/2296C08L77/02
Inventor 田明刘恒张立群宁南英田洪池韩吉彬
Owner BEIJING UNIV OF CHEM TECH
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